my values are getting truncated!

[sneakyimp]

my code looks like this:

$arr[0] = 1;
$arr[1] = 2;
$arr[2] = "foo";
$arr[3] = 12343434874.348373872;
$arr[4] = 2147483647;
$arr[5] = 1.1;
$arr[6] = 2147483648;
$arr[7][0] = "first sub array";
$arr[7][1] = "second sub array";

echo "value is " . $arr[3];

when i run it, i get

value is 12343434874.348

where did the extra 6 digits go?

[Weedpacket]

Probably too insignificant for representation in floating point. But there's a setting in php.ini (I forget its name right now) that affects displayed precision.

Ah; here's the thread. Yes, that sounds more like it. php.ini. Definitely.

Google for floating point arithmetic to learn more about how it works (including the fact that 1.1 cannot be represented exactly in binary).